Refrigeration/air conditioning equipment
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMasanori Aoki, Masato Yosomiya, Fumitake Unezaki, Makoto Saitou, Tetsuji Saikusa
Life of this patent
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Abstract
Refrigeration/air conditioning equipment includes a first internal heat exchanger for exchanging heat between a refrigerant to be sucked in a compressor and a high-pressure liquid refrigerant, an injection circuit for evaporating a bypassed high-pressure liquid at intermediate pressure and injecting the vaporized refrigerant into the compressor, a second internal heat exchanger for exchanging heat between the high-pressure liquid refrigerant and the refrigerant to be injected, and a heat source for heating the refrigerant to be injected.
Claims7
Refrigeration/air conditioning equipment comprising:
- a compressor;
- a four-way valve;
- an indoor heat exchanger;
- a first decompressor;
- and
- an outdoor heat exchanger,
- wherein these components are coupled circularly, and heat is supplied from the indoor heat exchanger,
- the refrigeration/air conditioning equipment further comprising:
- an intermediate-pressure receiver disposed between the indoor heat exchanger and the first decompressor;
- a first internal heat exchanger that exchanges heat between a refrigerant in the intermediate-pressure receiver and a refrigerant in a suction pipe of the compressor;
- and
- an injection circuit in which part of a refrigerant between the indoor heat exchanger and the first decompressor is bypassed and is injected into a compression chamber in the compressor,
- the injection circuit comprising:
- a second decompressor;
- a second internal heat exchanger that exchanges heat between a refrigerant having a pressure reduced by the second decompressor and the refrigerant between the indoor heat exchanger and the first decompressor;
- and
- a heat source for heating a refrigerant, disposed between the second internal heat exchanger and the compressor.
Dependencies are inferred from the claim text.